Mould Investigation and Assessment Report

Transcription

1 Environment Chapleau Museum Mould Investigation and Assessment Report Prepared by: AECOM Canada Ltd. 523 Wellington Street East tel Sault Ste. Marie, ON, Canada P6A 2M fax Project Number: Date: July 2013

2 Statement of Qualifications and Limitations The attached Report (the Report ) has been prepared by AECOM Canada Ltd. ( Consultant ) for the benefit of the Township of Chapleau ( Client ) in accordance with the agreement between Consultant and Client, including the scope of work detailed therein (the Agreement ). The information, data, recommendations and conclusions contained in the Report (collectively, the Information ): is subject to the scope, schedule, and other constraints and limitations in the Agreement and the qualifications contained in the Report (the Limitations ) represents Consultant s professional judgement in light of the Limitations and industry standards for the preparation of similar reports may be based on information provided to Consultant which has not been independently verified has not been updated since the date of issuance of the Report and its accuracy is limited to the time period and circumstances in which it was collected, processed, made or issued must be read as a whole and sections thereof should not be read out of such context was prepared for the specific purposes described in the Report and the Agreement in the case of subsurface, environmental or geotechnical conditions, may be based on limited testing and on the assumption that such conditions are uniform and not variable either geographically or over time Consultant shall be entitled to rely upon the accuracy and completeness of information that was provided to it and has no obligation to update such information. Consultant accepts no responsibility for any events or circumstances that may have occurred since the date on which the Report was prepared and, in the case of subsurface, environmental or geotechnical conditions, is not responsible for any variability in such conditions, geographically or over time. Consultant agrees that the Report represents its professional judgement as described above and that the Information has been prepared for the specific purpose and use described in the Report and the Agreement, but Consultant makes no other representations, or any guarantees or warranties whatsoever, whether express or implied, with respect to the Report, the Information or any part thereof. The Report is to be treated as confidential and may not be used or relied upon by third parties, except: as agreed in writing by Consultant and Client as required by law for use by governmental reviewing agencies Consultant accepts no responsibility, and denies any liability whatsoever, to parties other than Client who may obtain access to the Report or the Information for any injury, loss or damage suffered by such parties arising from their use of, reliance upon, or decisions or actions based on the Report or any of the Information ( improper use of the Report ), except to the extent those parties have obtained the prior written consent of Consultant to use and rely upon the Report and the Information. Any damages arising from improper use of the Report or parts thereof shall be borne by the party making such use. This Statement of Qualifications and Limitations is attached to and forms part of the Report and any use of the Report is subject to the terms hereof _AECOM_Mould Report July 2013.FINAL.Docx

3 AECOM 523 Wellington Street East tel Sault Ste. Marie, ON, Canada P6A 2M fax April 30 th, 2013 Mr. Allan Pellow Township of Chapleau 20 Pine Street West PO Box 129 Chapleau, Ontario POM 1K0 Dear Mr. Pellow Project No: Regarding: Mould Investigation and Assessment Report Chapleau Museum, Chapleau Ontario Please find AECOM s Report entitled Mould Investigation and Assessment Report Completed for the Chapleau Museum, located in the Township of Chapleau Ontario. Should you have questions, concerns or wish to discuss, please contact the undersigned at your convenience. Sincerely, AECOM Canada Ltd. Colin C Liddiard, C.E.T, EP Environmental Coordinator Sault Ste. Marie, Ontario colin.liddiard@aecom.com Encl _AECOM_Mould Report July 2013.FINAL.Docx

4 Distribution List # of Hard Copies PDF Required Association / Company Name 2 1 The Township of Chapleau Revision Log Revision # Revised By Date Issue / Revision Description AECOM Signatures Report Prepared By: Colin C Liddiard, C.E.T. Environmental Coordinator Report Reviewed By: Sean M. Hart, Mould Assessor Sr. Project Manager _AECOM_Mould Report July 2013.FINAL.Docx

5 Executive Summary On June 13 th, 2013, AECOM Canada Ltd. (AECOM) was commissioned by Township of Chapleau. (herein referred to as the Township ) to complete a mould investigation and assessment for the structure known as the Chapleau Museum, located at 94 Monk Street in the Town of Chapleau, Ontario. Based on discussion with Township representatives, the building was closed to the public and Township employees in 2011, due to an order issued by the Ministry of Labour requiring that a mould investigation and assessment be completed to determine whether concerns exist for workers being exposed to an indoor mould growth problem. Subsequently, the Township retained AECOM to conduct a mould investigation and assessment to review building conditions and whether an indoor mould growth problem exists. During the course of AECOM s June 20 th, 2013, assessment, a total of four (4) non-viable assessment air samples were collected from areas of the structure, for which laboratory results revealed the presence of Aspergillus/Penicillium-type spores on the samples collected in the southwest corner of the main floor, and basement area. In addition, Pithomyces spores were identified on the samples collected from the northeast corner of the main floor and basement, suggesting the presence of mould amplification sites. Furthermore, Cladosporium and Acremonium mould growth was identified on a sample collected from the surface of wall materials located in the northeast corner of the basement. Therefore, based on the mould investigation and assessments completed on June 20 th, 2013, it is in the opinion of AECOM that further action is required with respect to remediation activities for mould growth and spore contamination identified within the building. However, prior to doing so, all sources of water intrusion problems must be addressed. We recommend that only contractors with specific training in mould remediation techniques and equipment should perform mould remediation activities since inadequately trained personnel can seriously exacerbate the problem. Furthermore, based on the potentials for exposures to mould growth and release of spores, remediation of mould contaminated building materials should generally follow Level III Mould Abatement, large-scale mould growth abatement (>100 square feet of visible growth) in accordance with the Canadian Construction Association standard CCA 82 Mould guidelines for the Canadian Construction Industry February In addition, the Environmental Abatement Council of Ontario (EACO), Mould Abatement Guidelines: Second Edition: 2010, and the Institute for Inspection, Cleaning, Restoration Certification (IICRC), S520 Standard and Reference Guide for Professional Mold Remediation, Second Edition: 2008, should be referenced for the remediation of mould growth and spore impacts _AECOM_Mould Report July 2013.FINAL.Docx 1

6 Table of Contents Statement of Qualifications and Limitations Letter of Transmittal Distribution List Executive Summary 1. INTRODUCTION Terms of Reference Background Scope of Work Safety, Health and the Environment Reporting Limitations Methodology INVESTIGATION AND ASSESSMENT Visual Inspection Bio-Tape Samples Non-Viable Air Sampling Spore Trap Cassettes SUMMARY OF LABORATORY ANALYSIS Bio-Tape Samples Non-Viable Air Sampling Spore Trap Cassettes CONCLUSION QUALIFICATIONS OF CONSULTANT AND LEAD ASSESSOR REFERENCES... 8 List of Tables Page Table 1 Spore Trap Analytical Results Appendices Appendix A. EMC Laboratory Analytical Reports _AECOM_Mould Report July 2013.FINAL.Docx 2

7 1. INTRODUCTION 1.1 Terms of Reference On June 13 th, 2013, AECOM Canada Ltd. (AECOM) was commissioned by Township of Chapleau. (herein referred to as the Township ) to complete a mould investigation and assessment for the structure known as the Chapleau Museum, located at 94 Monk Street in the Town of Chapleau, Ontario (herein referred to as the Site ). 1.2 Background Based on discussion with Township representatives, the building was closed to the public and Township employees in 2011, due to an order issued by the Ministry of Labour requiring that a mould investigation and assessment be completed to determine whether concerns exist for workers being exposed to an indoor mould growth problem. Subsequently, the Township retained AECOM to conduct a mould investigation and assessment to review building conditions and whether an indoor mould growth problem exists. 1.3 Scope of Work The scope of work associated with the mould investigation and assessment was as follows: Conduct a non-intrusive visual inspection of accessible areas of the building, to review building conditions, identify visible mould contaminated and/or concerns for potential hidden mould growth; Collect non-viable air samples to review the airborne fungal spores to a genus level, and to quantify the relative indoor airborne spore concentrations; Collect bulk and/or lift-tape samples from building materials that appeared to support mould growth, to review the type (species) and confirm mould growth; Relinquish samples to a Microbiology Laboratory who participates with the American Industrial Hygiene Association s (AIHA) Environmental Microbiology Proficiency Analytical Testing program, for direct microscopy examination and spore trap analyses; and, Provide a mould investigation and assessment report on findings, opinions, conclusion and if necessary, recommendations for remediation. 1.4 Safety, Health and the Environment Prior to commencing the field component of the investigation and assessment, AECOM reviewed all safety, health and environmental concerns relevant to the Site, as well as the tasks involved with completing the work that would identify any hazards to the workers, the public or the environment. A potential health and safety concern was identified for potential exposure to elevated concentrations of mould spores; therefore, the assessor used a half face-piece respirator equipped with N95 cartridges during the course of the assessment and sample collection. Otherwise, no other health and safety concerns were identified that would pose unsafe or hazardous working conditions. Safe work practices were implemented throughout the entirety of the project, and no injuries or impairment to the environment was recorded _AECOM_Mould Report July 2013.FINAL.Docx 3

8 1.5 Reporting Limitations This mould investigation and assessment is limited to the review and assessment for mould growth and potential spore impacts associated with visibly accessible areas of the structure. The possibility remains that unexpected environmental conditions may be encountered at the Site in locations not specifically observed or investigated. AECOM makes no other evaluations whatsoever, including those concerning the legal significance of designated substances, or exposures to mould growth. With respect to regulatory compliance issues, regulatory statutes are subject to interpretation and change. Such interpretations and regulatory changes should be reviewed with one s own legal counsel. All occupant health inquiries should be referred to a physician knowledgeable in the health effects of environmental mould exposures. Any use which a third party makes of this report, or any reliance on or decisions to be made based upon it, are the responsibility of such third parties. 1.6 Methodology Visual inspections included observations of exposed and accessible building materials and contents located within the building basement and main floor. In addition, with the use of Delmhorst BD-2100 Moisture Metre, inspection of building materials was conducted to review the relative moisture content. Furthermore, a Extech RH300 Psychrometer was used to monitor the indoor ambient temperature and humidity levels. Non-viable air samples were collected with the use of Zefon Bio-Pump and non-viable Air-O-Cell spore trap cassettes to determine mould spores per cubic meter of air (spores/m³). The pump was calibrated to a flow rate of 15-litres per minute (Lpm) and samples were collected over a period of ten (10) minutes (min). Assessment samples were collected from the areas of concern (AOC) for potential exposures to mould growth and/or spores. Reference samples were collected from outdoors. For the purposes of assessing whether a mould growth problem exists, assessment samples are compared to reference samples, where airborne spore concentrations identified outdoor, or indoor areas without concern for significant mould growth, are similar, or less than, reference sample concentrations. Generally, the fungal ecology is considered normal when the presence and concentrations of mould species within assessment samples are similar to those present in reference samples. The fungal ecology is considered problematic when a significant presence of mould species within assessment samples is not present in reference samples, or when the concentrations of mould spores within assessment samples are significantly elevated in comparison to reference samples. Moreover, the fungal ecology is considered problematic when 1 the total mold spore concentration per cubic metre is above 10,000, and 2 one should be concerned about concentrations of mold (specific species) detected in indoor ambient air that are greater than 100 to 200 CFU/m 3 or greater than 1000 spores/m 3. Furthermore, the National Allergy Bureau (NAB ) a section of the American Academy of Allergy, Asthma and Immunology's (AAAAI ) considers mold counts in outdoor air of spores per cubic meter of air as low, to 6500 to 12,999 spores per cubic meter of air as moderate, to 13,000 to 49,999 spores per cubic meter of air as high, and above 50,000 as very high. The following table is also referred to when concluding whether a mould problem exists in an indoor environment; 1 Baxter, D.M "Fungi Spore Concentrations Inside Clean and Water-damaged Commercial and Residential Buildings." Environmental Testing Associates, San Diego, CA. Centers for Disease Control and Prevention (CDC) Update: pulmonary hemorrhage/hemosiderosis among Cleveland, Ohio, MMWR 49: Ronald E. Gots, M.D., Ph.D. Principal, International Center for Toxicology and Medicine (ICTM) CORRECTING MOLD MISINFORMATION _AECOM_Mould Report July 2013.FINAL.Docx 4

9 3 Table Indoor Mould Classifications: Residential Buildings Clean Environment Mouldy Environment Total Spores Less than 1,200 Greater than 1,300 Aspergillus/Penicillium Less than 750 Greater than 900 Ascospores/Basidiospores Less than 1,200 Greater than 1,300 Sample collection involved drawing air into a 37 mm cassette with adhesive coated glass cover slips. Spore quantification was made at 630x magnification with results presented as number of spores per cubic meter of air (ct/m 3 ). Non-viable air samples and Bio-Tape samples were relinquished to EMC Scientific Incorporated Laboratory for analyses. EMC Scientific Incorporated Laboratory participates in the American Industrial Hygiene Association Environmental Microbiology Proficiency Testing Program. 2. INVESTIGATION AND ASSESSMENT 2.1 Visual Inspection On June 20 th, 2013, AECOM attended the Site and conducted a non-intrusive visual inspection to review the condition of building materials and contents located within visibly accessible areas of the building, to investigate for concerns associated with the presence of mould growth, and assess whether indoor environmental conditions were conducive for mould proliferation. Inspections conducted for the exterior of the building revealed that the condition of building materials appeared in good condition; however, cracks were observed in the stone foundation located at the rear corner of the building, which may be a source for indoor water intrusion. Inspections conducted for the interior components of the building s main floor did not reveal visible mould growth or evidence of water intrusion that may contribute to the proliferation of mould. RH readings for the first floor area were recorded to average 57% and the indoor temperature was 12.1 degrees Celsius (C ). The RH is high and the temperature low and not within the recommended ASHRAE standards for indoor occupied spaces. Moisture content for interior building materials located along exterior wall were recorded at ten (10) locations, which readings revealed moisture contents of 8.2 to 10.8% that is considered within normal ranges. Inspections conducted for the interior components of the building s basement area revealed visible mould growth on the surface of plywood sheathing materials located at the rear corner of the building, in the vicinity of observed cracks in the stone foundation wall. In addition, water stains observed on wall and flooring materials suggest evidence of water intrusion that may contribute to the proliferation of mould. RH readings for the basement area were recorded to average 81.7% and the indoor temperature was 9.9 degrees Celsius (C ). The RH is very high and the temperature very low and not within the recommended ASHRAE standards for indoor occupied spaces. Moisture content for interior building materials located along exterior wall were recorded at twenty-five (25) locations, which readings revealed moisture contents of 14 to 24% that is considered slightly elevated. 2.2 Bio-Tape Samples During the June 20 th, 2013, Site visit, AECOM collected one (1) Bio-Tape sample from the surface of plywood wall sheathing materials located in the northeast corner of the basement, approximately 100mm above the floor. 3 numbers are in spores per cubic meter Source: Baxter et al. Journal of Occupational Environmental Hygiene, _AECOM_Mould Report July 2013.FINAL.Docx 5

10 2.3 Non-Viable Air Sampling Spore Trap Cassettes AECOM collected a four (4) non-viable assessment air samples from areas impacted by the loss, and one (1) reference non-viable air sample, from outdoors for comparative purposes. Air samples were collected as follows: Samples labelled CM-AQ1 was collected from the northeast corner of the main floor, centrally; Samples labelled CM-AQ2 was collected from the southwest corner of the main floor, centrally; Samples labelled CM-AQ3 was collected from the northeast corner of the basement, centrally; Samples labelled CM-AQ4 was collected from the southwest corner of the basement, centrally; and, Samples labelled CM-AQ5 was collected outdoors, adjacent to the main entrance. 3. SUMMARY OF LABORATORY ANALYSIS 3.1 Bio-Tape Samples The laboratory identified moderate Cladosporium and Acremonium mould growth the Bio-Tape samples collected from the surface of plywood wall sheathing materials located in the northeast corner of the basement. Refer to Appendix A EMC Scientific Laboratory Analytical Reports. 3.2 Non-Viable Air Sampling Spore Trap Cassettes Review of the laboratory report for samples revealed Alternaria spores were identified in two of the assessment samples, and Cladosporium spores in all of the assessment samples; however, when comparing the above noted spore concentrations to the reference samples, the concentrations of these fungal spores were not elevated. The laboratory report also revealed Aspergillus/Penicillium-type spores on three (3) assessment samples, which when comparing the above noted spore concentrations to the reference sample, the concentrations of these fungal spores were elevated in the southwest corner of the main floor, and basement area. The laboratory also identified concentrations of Pithomyces spores within the assessment samples collected from northeast corner of the main floor and basement, which were not identified in the reference sample. Samples were relinquished to EMC Scientific Incorporated Laboratory for fungal spore identification and spore count per cubic meter of air, refer to Tables 1 Spore Trap Analytical Results and Appendix A EMC Scientific Laboratory Analytical Reports. 4. CONCLUSION During the course of AECOM s June 20 th, 2013, assessment, a total of four (4) non-viable assessment air samples were collected from areas of the structure, for which laboratory results revealed the presence of Aspergillus/Penicillium-type spores on the samples collected in the southwest corner of the main floor, and basement area. In addition, Pithomyces spores were identified on the samples collected from the northeast corner of the main floor and basement, suggesting the presence of mould amplification sites. Furthermore, Cladosporium and Acremonium mould growth was identified on a sample collected from the surface of wall materials located in the northeast corner of the basement. Therefore, based on the mould investigation and assessments completed on June 20 th, 2013, it is in the opinion of AECOM that further action is required with respect to remediation activities for mould growth and spore _AECOM_Mould Report July 2013.FINAL.Docx 6

11 contamination identified within the facility. However, prior to doing so, all sources of water intrusion problems must be addressed. We recommend that only contractors with specific training in mould remediation techniques and equipment should perform mould remediation activities since inadequately trained personnel can seriously exacerbate the problem. Furthermore, based on the potentials for exposures to mould growth and release of spores, remediation of mould contaminated building materials should generally follow Level III Mould Abatement, large-scale mould growth abatement (>100 square feet of visible growth) in accordance with the Canadian Construction Association standard CCA 82 Mould guidelines for the Canadian Construction Industry February In addition, the Environmental Abatement Council of Ontario (EACO), Mould Abatement Guidelines: Second Edition: 2010, and the Institute for Inspection, Cleaning, Restoration Certification (IICRC), S520 Standard and Reference Guide for Professional Mold Remediation, Second Edition: 2008, should be referenced for the remediation of mould growth and spore impacts. The results of this report should be communicated to all potential occupants, all parties of concern and personnel that may enter the facility. The full extent of mould growth and spore impacts, vertically and horizontally within the wall cavities, ceilings, floors, and other inaccessible areas is not known at this time. Further investigation of the water damage and/or mould contamination during this initial investigation could potentially contaminate and/or exacerbate the situation. Additional investigation and testing by AECOM is advised after the area(s) or structure has been isolated, known mould contamination areas remediated and the potential for cross-contamination is minimized. 5. QUALIFICATIONS OF CONSULTANT AND LEAD ASSESSOR AECOM has extensive experience with hazardous materials and provides services for most of the areas covered within the Occupational Health and Safety Act (OHSA). Some of the specific disciplines of Environmental Consulting and Occupational Health for which AECOM has excelled include: Asbestos Consulting Building Surveys for Asbestos Asbestos Management Programs (AMP) Comprehensive Project Management Specifications & Scopes of Work Air Monitoring and Inspection Services Hazardous Materials Management Designated Substances ( Pre-Construction ) Surveys Lead Contamination PCBs Urea Formaldehyde Foam Insulation (UFFI) Hygiene Services Indoor Air Quality Assessments (IAQ) Mould Consulting Detailed Mould Investigations Specifications & Scopes of Work Health Hazard Assessment Air monitoring and / or Bulk Sampling Over the last eighteen (18) years, Colin Liddiard (Colin) has completed numerous Phase I, II and III Environmental Site Assessments, and over the last fifteen (15) years, Colin has completed over one hundred (100) mould investigations and assessments in general accordance with the Environmental Abatement Council of Ontario (EACO), Mould Abatement Guidelines: Second Edition: 2010, the Institute for Inspection, Cleaning, Restoration Certification (IICRC), S520 Standard and Reference Guide for Professional Mold Remediation, Second Edition: 2008, the Canadian Construction Association Mould Guidelines for the Canadian Construction Industry February 2004, the National Air Duct Cleaners Association ACR 2002 Assessment, Cleaning, and Restoration of HVAC systems, the Manitoba Department of Labour Guidelines for the Investigation, Assessment and Remediation of Mould in Workplaces March 2001, Health Canada document Fungal Contamination in Public Building and New York City Department of Health Guidelines on Assessment and Remediation of Fungi in Indoor Environments June _AECOM_Mould Report July 2013.FINAL.Docx 7

12 Colin s client base includes the City of Sault Ste. Marie, the Algoma District School Board, Business Development Bank of Canada (Sault Ste. Marie Branch), Public Works and Governmental Services Canada, the Ontario Realty Corporation, Parks Canada, several provincial ministries, insurance adjusters, property managers, commercial Institutions, health care facilities, industrial firms, banking institutions, and insurance companies. This Mould Investigation and Assessment was conducted in accordance with generally accepted engineering practices, however, no warranty is provided or implied. 6. REFERENCES Environmental Abatement Council of Ontario (EACO): Mould Abatement Guidelines: Second Edition: 2010 Institute for Inspection, Cleaning, Restoration Certification (IICRC): S520 Standard and Reference Guide for Professional Mold Remediation: Second Edition: 2008 Health Canada: Fungal Contamination in Public Buildings: Health Effects and Investigation Methods: Health Canada, 2004 Canadian Construction Association (CCA 82): Mould Guidelines for the Canadian Construction Industry. February 2004 National Air Duct Cleaners Association (NADCA): ACR 2002 Assessment, Cleaning and Restoration of HVAC Systems Health Canada: Construction-related Nosocomial Infections in Patients in Health Care Facilities Decreasing the Risk of Aspergillus, Legionella and Other Infections: Health Canada, 2001 American Conference of Governmental Industrial Hygienists: Bioaerosols Assessment and Control. Cincinnati, Ohio: American Conference of Governmental Industrial Hygienists, 1999 Manitoba Department of Labour: Guidelines for the Investigation, Assessment and Remediation of Mould in Workplaces. Workplace Safety and Health Division Manitoba Department of Labour, March 2001 New York City Department of Health: The New York City Guidelines, Guidelines on Assessment and Remediation of Fungi in Indoor Environments. New York, New York: New York City Department of Health, 2000 Health Canada: Fungal Contamination in Public Buildings: A Guide to Recognition and Management: Federal-Provincial Committee on Environmental and Occupational Health: Ottawa, Ontario. Health Canada, 1995 Health Canada: Indoor Air Quality in Office Buildings: A Technical Guide: Federal-Provincial Committee on Environmental and Occupational Health: Ottawa, Ontario. Health Canada, _AECOM_Mould Report July 2013.FINAL.Docx 8

13 Tables Table 1 Spore Trap Analytical Results

14 Mould Investigation and Assessment Chapleau Museum TABLE 1 SPORE TRAP ANALYTICAL RESULTS 1 REFERENCE SAMPLING 2 ASSESSMENT SAMPLING Sample ID CM-OUTDOORS CM-AQ1 CM-AQ2 CM-AQ3 CM-AQ4 Sampling Location Outdoors - adjacen to main entrance Northeast corner of main floor Southwest corner of main floor Northeast corner of basement Southwest corner of basement Sampling Date June 20, 2013 June 20, 2013 June 20, 2013 June 20, 2013 June 20, 2013 Laboratory ID# Total Spore Count Alternaria Arthrinium 4 Aspergillus/Penicillium type Ascospores/Basidiospores Cercospora Chaetomium Cladosporium Curvularia Drechslera/Bipolaris group Epicoccum Fusarium Oidium 7 Pithomyces 7 13 Spegazzinia Smuts, Periconia, Myxomycetes 87 7 Stachybotrys Stemphylium Torula Ulocladium NOTES: 1 Reference Samples collected from outdoors, or indoors from area(s) not problematic for mould growth 3 FUNGAL SPORES OF CONCERN 2 Assessment Sampling collected from areas of concern for identified mould growth 3 Expressed in spores per cubic meter of air 4 Aspergillus/Penicillium type spores may include those of Acremonium, Paecilomyces, Trichoderma and others. 27 Concentrations exceed the highest reported reference sample concentration Table 1 Spore Trap.xlsx PN Page 1 of 1

15 Appendix A EMC Laboratory Analytical Reports

16 To: Colin Liddiard AECOM Canada Limited 523 Wellington Street East Sault Ste. Marie, Ontario P6A 2M4 Laboratory Analysis Report EMC LAB REPORT NUMBER: Job/Project Name: Chapleau Museaum Mould Job/Project No: No. of Samples: 5 Sample Type: Air-O-Cell Date Received: Jun 24/13 Analysis Method(s): Fungal Spore Counting Date Analyzed: Jun 27/13 Date Reported: Jun 27/13 Analyst: Dilshad Naeem, M.Sc., Microbiologist Approved By: Fajun Chen, Ph.D., Principal Mycologist Client's Sample ID CM-AQ1 CM-AQ2 CM-AQ3 CM-AQ4 CM-OUTDOOR EMC Lab Sample No Sampling Date Jun 20/13 Jun 20/13 Jun 20/13 Jun 20/13 Jun 20/13 Description/Location N.E. corner of S.W. corner of N.E. corner of S.W. corner of Outdoor main floor main floor basement basement reference Air Volume (m 3 ) Fungal Spores raw ct. % spores/m3 raw ct. % spores/m3 raw ct. % spores/m3 raw ct. % spores/m3 raw ct. % spores/m3 Alternaria Arthrinium Ascospores Aspergillus/Penicillium type Basidiospores Cercospora Chaetomium Cladosporium Colorless Curvularia Drechslera/Bipolaris group Epicoccum Fusarium Nigrospora Oidium Pithomyces Rusts Smuts, Periconia, Myxomycetes Stachybotrys Ulocladium Unidentified spores Number of spores/sample Fungal fragments (0-3 +) Non-fungal material (0-3 +) TOTAL SPORES/M 3 3,673 3,927 12,747 7, ,580 Note: 1. Aspergillus/Penicillium type spores may include those of Acremonium, Paecilomyces, Trichoderma and others. 2. A scale of 0 + to 3 + (indicating increasing amount) is used to rate abundance of fungal fragments and non-fungal material, with 3+ indicating the most abundance. 3. The presence of a large amount of dust debris may obscure some spores to be counted. Spore counts from samples with 3 + non-fungal material and/or 3 + fungal material may be treated as under-counts. 4. Unidentified spores are those lacking distinguishable characteristics for correct identification. Colorless are colorless spores lacking distinguishable characteristics. 5. These results are only related to the sample(s) analyzed. EMC Scientific Inc Ambler Drive, Suite 100, Mississauga, ON L4W 4J4 Tel , Fax AIHA EMPAT Participant (Lab ID# ) Page 1 of 1

17 Laboratory Analysis Report To: Colin Liddiard EMC LAB REPORT NUMBER: AECOM Canada Limited Job/Project Name: Chapleau Museum Mould 523 Wellington Street East Job/Project No: No. of Samples: 1 Sault Ste. Marie, Ontario Sample Type: Tape Lift Date Received: Jun 24/13 P6A 2M4 Analysis Method(s): Direct Microscopic Examination Date Analyzed: Jun 27/13 Date Reported: Jun 27/13 Analyst: Fajun Chen, Ph.D., Principal Mycologist Client s Sample ID Lab Sample No. Date Sampled CM-LT Jun 20/13 N.E. corner of basement 4 from ground Description/Location Mould Identified, in Rank Order Mould Growth Cladosporium Acremonium Aspergillus/Penicillium (a few spores) Moderate Note: 1. Mould growth is subjectively assessed with description terms sparse, moderate and abundant. 2. The presence of spores (lacking other fungal structures associated) is assessed as following: a few spores (< 10 spores average per microscopic field at 400X), some spores ( spores average per microscopic field at 400X), many spores (> 100 spores average per microscopic field at 400X). 3. The presence of a few spores generally represents settled spores on the surface of the sample rather than indicating mould growth. 4. The results are only related to the samples analyzed. EMC Scientific Inc Ambler Drive Suite 100 Mississauga Ontario L4W 4J4 T F AIHA EMPAT Participant (Lab ID# ) Page 1 of 1